On 20 July 2017 the Institute held a day of celebrations to mark the 25th anniversary of its opening in 1992. Amongst the many esteemed guests and speakers present were founding INI director Sir Michael Atiyah OM FRS FRSE FMedSci FREng, Fields Medallist Martin Hairer KBE FRS, broadcasters Dr Hannah Fry and Dr Simon Singh (pictured above), and - to mark what was also the anniversary of his original proof of Fermat's Last Theorem - Sir Andrew Wiles. The talks took place in the very same room in which Sir Andrew first presented his proof of the 17th century conjecture.

Please enjoy the below gallery of images captured throughout this most special of days.